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DEV Challenges

This is the official tag for submissions and announcements related to DEV Challenges.

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SafeSMS: On-Device Threat Detection with Gemma 4 E4B, no internet required

Gemma 4 Challenge: Build With Gemma 4 Submission

SafeSMS: On-Device Threat Detection with Gemma 4 E4B, no internet required

14
Comments 1
3 min read
V.A.L.I.D.

GitHub “Finish-Up-A-Thon” Challenge Submission

V.A.L.I.D.

5
Comments
3 min read
Android Views Is Now in Maintenance Mode — Here's What That Actually Means for Android Devs

Google I/O Writing Challenge Submission

Android Views Is Now in Maintenance Mode — Here's What That Actually Means for Android Devs

4
Comments
4 min read
Sentient Canvas: A Localized Agentic Workspace Powered by Google's Gemma 4

Gemma 4 Challenge: Build With Gemma 4 Submission

Sentient Canvas: A Localized Agentic Workspace Powered by Google's Gemma 4

2
Comments
2 min read
I built a security scanner, never shipped it, and finally finished the job

GitHub “Finish-Up-A-Thon” Challenge Submission

I built a security scanner, never shipped it, and finally finished the job

4
Comments
3 min read
Antigravity 2.0 and the $1,000 OS: Why "Agent-First" Feels Like the Direction I've Been Building Toward Anyway

Google I/O Writing Challenge Submission

Antigravity 2.0 and the $1,000 OS: Why "Agent-First" Feels Like the Direction I've Been Building Toward Anyway

4
Comments
6 min read
I built PROOFER - Privacy first Chrome extension that proofreads your texts using Gemma 4

Gemma 4 Challenge: Build With Gemma 4 Submission

I built PROOFER - Privacy first Chrome extension that proofreads your texts using Gemma 4

1
Comments
4 min read
Running Gemma 4 26B on an Old GTX 1080 with llama.cpp

Gemma 4 Challenge: Write about Gemma 4 Submission

Running Gemma 4 26B on an Old GTX 1080 with llama.cpp

2
Comments
12 min read
SCMRLH 003: A Gemma 4 Harness for Grounded QA and Safe Abstention

Gemma 4 Challenge: Build With Gemma 4 Submission

SCMRLH 003: A Gemma 4 Harness for Grounded QA and Safe Abstention

2
Comments
3 min read
How I made my React site agent-ready in 100 lines

Google I/O Writing Challenge Submission

How I made my React site agent-ready in 100 lines

5
Comments
8 min read
30 Days With Hermes Agent: The Only AI That Learned From My Mistakes

Hermes Agent Challenge Submission: Write About Hermes Agent

30 Days With Hermes Agent: The Only AI That Learned From My Mistakes

2
Comments
9 min read
Gemma 4 vs GPT-4o vs Llama 3: What Actually Works Locally?

Gemma 4 Challenge: Write about Gemma 4 Submission

Gemma 4 vs GPT-4o vs Llama 3: What Actually Works Locally?

3
Comments
5 min read
The Quiet Revolution: How Firebase Became the First Agent-Native Backend at Google I/O 2026

Google I/O Writing Challenge Submission

The Quiet Revolution: How Firebase Became the First Agent-Native Backend at Google I/O 2026

6
Comments
4 min read
I built an Earth Day app around Malaysian daily habits

DEV Weekend Challenge: Earth Day

I built an Earth Day app around Malaysian daily habits

2
Comments
2 min read
The Most Important Part of Google I/O 2026 Wasn’t a Model — It Was the Infrastructure

Google I/O Writing Challenge Submission

The Most Important Part of Google I/O 2026 Wasn’t a Model — It Was the Infrastructure

3
Comments
4 min read
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